Perhaps you should try some spelling variations:
"support eu integration theories." » "support eu integration theorems.", "support eu integrationstheorie 2.", "support eu integration theory.", "support deep integration theories.", "support die integration theories.", "support data integration theories.", "support _ integration theories.", "support a integration theories.", "support 4 integration theories."
"import south integration south." » "import youth integration south.", "import about integration south.", "import dutch integration south.", "import south integration study.", "import south integration some.", "import south integration social.", "report south integration south.", "importers south integration south.", "import growth integration south."

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (("import south integration south.") OR ("support eu integration theories."))~.
• Removing quotes may allow a broader search: (( import south integration south. ) or ( support eu integration theories. ))~.
• Adding a wildcard symbol may retrieve word variants: (("import south integration south.") or ("support eu integration theories."))*.